What cover is attached to the ebook on your Fire?
Recheck the metadata for the book while in calibre and "check metadata" for the covers available. If the cover you want appears and is an "Amazon" provided cover you may want to choose that cover. Transfer it to your Fire and check if it the correct cover.
I wonder if the problem could be the file type of the cover in not compatible/accepted by the Fire.
I've not had any problems getting a cover I want transferred with the book but I've had to look around online for some more obscure books to get the cover I want then convert the file type to an acceptable type.
Hope this helps.

What cover is attached to the ebook on your Fire?
Recheck the metadata for the book while in calibre and "check metadata" for the covers available. If the cover you want appears and is an "Amazon" provided cover you may want to choose that cover. Transfer it to your Fire and check if it the correct cover.
I wonder if the problem could be the file type of the cover in not compatible/accepted by the Fire.
I've not had any problems getting a cover I want transferred with the book but I've had to look around online for some more obscure books to get the cover I want then convert the file type to an acceptable type.
Hope this helps.

Thank you for the reply. The cover that came attached (and the ones that show in Amazon) are long (as in showing the back and front book flap as one long image) so I wanted to par it down. I chose an image on my computer that is a .jpg. Does it only accept .gif files, possibly? I did convert it again afterward. I'm baffled why it won't work.

Quote:

Originally Posted by Skydog

I haven't replaced covers with PDFs but I have and do change covers on mobi and ePub books using Calibre without any problem.

Once you change the cover (via Calibre) you must convert the book, i.e., from mobi => mobi for it to be embedded in the file.

Are you doing this?

Thanks Skydog. I did re-convert it, yes. I'm really not sure what I'm doing wrong. I guess I'll try it again with a different file type like a .gif and see if that works.

I don't think you are doing anything wrong. The Fire seems to hold onto the initial cover image it gets for a particular ebook forever. I tried deleting an ebook from the device and then reloading the modified version, but this did not help.

Note by "cover" I mean (and I assume you mean) the thumbnail that shows up in the catalog. The actual cover in the ebook does get changed, as you can confirm by opening the ebook on the Fire and navigating to the cover.

The only thing that might work is to change whatever the Fire is using to identify the ebook. This is probably the Amazon ASIN.

Note by "cover" I mean (and I assume you mean) the thumbnail that shows up in the catalog. The actual cover in the ebook does get changed, as you can confirm by opening the ebook on the Fire and navigating to the cover.

The only thing that might work is to change whatever the Fire is using to identify the ebook. This is probably the Amazon ASIN.

That's exactly what I mean, yes. The cover that shows on the "book shelves" on the fire is what I want to change. Glad to know I wasn't doing anything wrong, I was so baffled by it. I'll look into seeing if I can change the ASIN, thanks very much for the suggestion.

That's exactly what I mean, yes. The cover that shows on the "book shelves" on the fire is what I want to change. Glad to know I wasn't doing anything wrong, I was so baffled by it. I'll look into seeing if I can change the ASIN, thanks very much for the suggestion.

Using Calibre , You can convert any format [like epud , pdf] to "mobi" , works for my Kindle Fire , the cover art is there.

No, issue was once you did that, you couldn't download different cover and update it on kindle. You were always stuck with initial cover, even if you deleted the book and upload the one with different cover.

Luckily, deleting local data for some system apps allowed covers to be rebuilt.

Cleared data for: (probably only one of this is necessary)
Amazon Kindle
Kindle Setup
Launcher

Did have to select timezone again, and go through quickstart guide, but everything else seems to be there!

Did anyone determine what settings need to be cleared to make the new covers display? I have the same issue. I can change them using Calibre and they are in the mobi file but don't display on the Fire.

Did anyone determine what settings need to be cleared to make the new covers display? I have the same issue. I can change them using Calibre and they are in the mobi file but don't display on the Fire.